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authorSachin Kamat <sachin.kamat@linaro.org>2013-07-15 02:36:23 -0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-09-26 17:18:17 -0700
commit469641b2b568a9295396ff723573bdeaf2c4293e (patch)
treee1b1c4b379df00dfb52ce220f83ec5f2bbfb6f20 /drivers/media/platform
parentcb6ecb39fe845251412e34e1d10bb6f4a3652f2f (diff)
downloadlinaro-lsk-469641b2b568a9295396ff723573bdeaf2c4293e.tar.gz
media: s5p-g2d: Fix registration failure
commit 8a09a4cc9bd9389dc6a3b5b2dd3a7d64d2fab7e1 upstream. Commit 1c1d86a1ea ("[media] v4l2: always require v4l2_dev, rename parent to dev_parent") expects v4l2_dev to be always set. It converted most of the drivers using the parent field of video_device to v4l2_dev field. G2D driver did not set the parent field. Hence it got left out. Without this patch we get the following boot warning and G2D driver fails to register the video device. WARNING: CPU: 0 PID: 1 at drivers/media/v4l2-core/v4l2-dev.c:775 __video_register_device+0xfc0/0x1028() Modules linked in: CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.11.0-rc1-00001-g1c3e372-dirty #9 [<c0014b7c>] (unwind_backtrace+0x0/0xf4) from [<c0011524>] (show_stack+0x10/0x14) [<c0011524>] (show_stack+0x10/0x14) from [<c041d7a8>] (dump_stack+0x7c/0xb0) [<c041d7a8>] (dump_stack+0x7c/0xb0) from [<c001dc94>] (warn_slowpath_common+0x6c/0x88) [<c001dc94>] (warn_slowpath_common+0x6c/0x88) from [<c001dd4c>] (warn_slowpath_null+0x1c/0x24) [<c001dd4c>] (warn_slowpath_null+0x1c/0x24) from [<c02cf8d4>] (__video_register_device+0xfc0/0x1028) [<c02cf8d4>] (__video_register_device+0xfc0/0x1028) from [<c0311a94>] (g2d_probe+0x1f8/0x398) [<c0311a94>] (g2d_probe+0x1f8/0x398) from [<c0247d54>] (platform_drv_probe+0x14/0x18) [<c0247d54>] (platform_drv_probe+0x14/0x18) from [<c0246b10>] (driver_probe_device+0x108/0x220) [<c0246b10>] (driver_probe_device+0x108/0x220) from [<c0246cf8>] (__driver_attach+0x8c/0x90) [<c0246cf8>] (__driver_attach+0x8c/0x90) from [<c0245050>] (bus_for_each_dev+0x60/0x94) [<c0245050>] (bus_for_each_dev+0x60/0x94) from [<c02462c8>] (bus_add_driver+0x1c0/0x24c) [<c02462c8>] (bus_add_driver+0x1c0/0x24c) from [<c02472d0>] (driver_register+0x78/0x140) [<c02472d0>] (driver_register+0x78/0x140) from [<c00087c8>] (do_one_initcall+0xf8/0x144) [<c00087c8>] (do_one_initcall+0xf8/0x144) from [<c05b29e8>] (kernel_init_freeable+0x13c/0x1d8) [<c05b29e8>] (kernel_init_freeable+0x13c/0x1d8) from [<c041a108>] (kernel_init+0xc/0x160) [<c041a108>] (kernel_init+0xc/0x160) from [<c000e2f8>] (ret_from_fork+0x14/0x3c) ---[ end trace 4e0ec028b0028e02 ]--- s5p-g2d 12800000.g2d: Failed to register video device s5p-g2d: probe of 12800000.g2d failed with error -22 Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Cc: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/media/platform')
-rw-r--r--drivers/media/platform/s5p-g2d/g2d.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/media/platform/s5p-g2d/g2d.c b/drivers/media/platform/s5p-g2d/g2d.c
index 553d87e5cea..fd6289d60cd 100644
--- a/drivers/media/platform/s5p-g2d/g2d.c
+++ b/drivers/media/platform/s5p-g2d/g2d.c
@@ -784,6 +784,7 @@ static int g2d_probe(struct platform_device *pdev)
}
*vfd = g2d_videodev;
vfd->lock = &dev->mutex;
+ vfd->v4l2_dev = &dev->v4l2_dev;
ret = video_register_device(vfd, VFL_TYPE_GRABBER, 0);
if (ret) {
v4l2_err(&dev->v4l2_dev, "Failed to register video device\n");